Headlight



May 5, '1925. 1,536,088

A. H. ENGLUND HEADLI GH T Filed July 22, 1922 2 Sheets-Sheet l May 5, 1925;

A.H.ENGLUND HEADLIGHT Filed July 22. 1922 2 Sheets-Sheet 2 ltl Patented .May 5, 1925.

` UNITED STATES AXEL H. ENGLUND, 0F PHILADELPHIEA,

PENNSYLVANIA, ASSIGNOR TO ELECTRIC SERVICE SUPPLIES COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORA- TIONDF PENNSYLVANIA.

HEADLIGHT.

Application led July 22, 1929..v .Serial No. 576,653.

To ZZ whoml t 'may concern:

Be it known thatl, Axl-:L H. ENGLUND, a citizen of the United States, residing in the city of Philadelphia, county of Philadelphiaand State of Pennsylvania, have invented certain Improvements in Headlights, of which the following is a specification.

This invention is a headlight having improved means for supporting, adjusting and focusing the lamp, providing a simple, sturdy and easily manipulated device for effecting and holding accurately the desired adjustment of the position of the lamp with relation to the refiector.

The invention is characterized, in its preferred construction, by the combination with a lamp housing containing a reflector, together with means for supporting and protecting the reflector. of a bracket fixed to said means, a lamp holder projecting through the centre of the reflector between furcations of the bracket, a vertical post movable longitudinally and axially in an arm of the bracket for supporting and adjusting the holder, and a lamp carrier having means connecting it with the holder to effect its longitudinal adjustment and the movement of the lamp along the axis of the reflector.

In the drawings, Fig. 1 is a broken part sectional side view ct' a headlight embodying my improvements; Fig. 2 is a perspective view of the detached bracket which carries and limits thev lateral movements of the lamp holder; Fig. 3 is a. rear view of the detached bracket, lamp holder and carrier with their connections; Fig. 4 is a top plan view of the construction shown in Fig. 3, and Fig. 5 is a sectional view taken on the line 5 -5" of Fig. 4.

'lhe invention, as illustrated in the accompanying drawings, is embodied in a headlight comprising a housing 1 of approximately cylindrical form, in which is fixed a concavo-convex shell 2 which forms a base and shield for the reflector 3 whose periphery is fixed to the conforming part 2 of the shell, the shell having al ri heral ring 2" which is set in the cylin rica wall 1a of the housing.

A bracket 4, having the upwardly projecting branches 4 and the downwardly projecting branch 4", is fixed to the back of the shell 2 (by rivets as shown) in conforming relation thereto, the branches 4 lylng on opposite sides of the axial open-v 1ng 2 through the shell, with which registersan 'axial opening 3a of the reflector.

The bracket 4 is provided with a rearwardly extending arm 4 having therein a vert-ical way 4d in which a post 5 is movable longitudinally and axially, the post having a threaded section 5a. A knurled nut 6 1s movable on the post in engagement with the thread thereof as also on the arm 4, whereby the post is adapted to be adjusted vertically.

A clamp 7 is engaged in a vertical seat 4e offset from the way 4d, and a set screw 8, movable through the outer end of the arm 4c, 1s adapted to force the clamp against the post 5 to fix it in the desired position.

A lamp holder 9, being of approximately cylindrical form split longitudinally between the top edges 9, is provided with the bottom socket 9", in which is fixed the top of the post 5, and with the top lugs9, adjacent the respective edges 9, for engagement by the set screw 10, by which the lugs are drawn together.

A lamp carrier 11 comprises a cylindricalbody 11, which tits and is n'iovable in the holder 9, and a shell 11", .in which is fixed the lamp socket 12. An insulating tube or ring 13 is disposed axially in the carrier so as to pass therethrough the wires 1-'t which are connected with the lamp 15, the latter being set in the lamp socket 12.

A screw 16 has a swivel 16a which engages the yoke 17 of a bracket 17 fixed to the rear end of the part 11, the screw making a threaded engagement with a lug 9d on the holder or bearing 9, by which the part 11 with its connections are adjusted axially'with relation to the part 9.

In operation, it will be undelstood that. when the nut 8 is loose, the lamp 15 canbc adjusted vertically by turning the nut 6 and laterally by means of its journal formed by the part 5, through an arc limited to the movement of the part 9 permitted by the parts 4, these adjustments being held by drawing up the set screw 8. The set screw 10 being loose and the screw -16 operated, the lamp is adjusted along the axis of the refiector. Hence, the mechanism permits a universal movement of the lamp tor focusing it, by its vertical movement, its oscillatory movement in different horizontal planes throughout its vertical movement, and its movement transverse to its vertical movement, in the several horizontal planes which support, of an upright post movable longitudinally and axially in said support, a threaded member engaging said post for effecting longitudinal adjustment thereotf means for clamping said post in adjusted position, a lamp holder carried by said post above said threaded member, and a lamp carrier movable in said holder transversely to said post. y

2. In a` headlight, the combination with a support, of an upright post movable longitudinally and axially in said support, a nut acting on said support and post for adjusting the latter longitudinally, means comprising a set screw threaded in said support` for fixing said post in position, a split holder carried by said post, a lamp carrier movable inl said holder transversely tol said post, means for clamping said holder on said carrier and means for adjusting said carrier in said holder.

3. In a headlight, the combination with a shell adapted forsupporting and protecting a reflector, of a bracket fixed to said shell, said bracket having upwardly projecting horns and an arm projecting rearwardly therefrom, an upright post movable longitudinally and axially through said rearwardl projecting arm, means for adjusting and clamping said post, a split cylindrical holder supported by said post and extending through said shell between said upright horns, said horns limiting the lateral movement of said holder, a lamp carrier movable in said holder along the axis thereof, means for clamping said holder on said carrier and means for adjusting said carrier in said holder. I

4. In a headlight, the combination with a casing, a metal shell fixed therein and a refiector fixed in said shell, of a bracket fixed to said shell and having bifurcations on opposite sides of the centre thereof and of said reflector, a post movable axially and longitudinally in said bracket, a'lamp holder carried by said post and adapted to oscillate between said bifurcations, and a lamp carrier movable in said holder along the axis thereof.

5. In a headlight, the combination with a reflector, of a lamp holder, a supporting post fixed to said lamp holder, a bearing in which said post is journalled, a threaded device engaging said post for effecting longitudinal adjustment thereof, and means for clamping said po'st and bearing together to maintain said holder in adjusted position.

6. In a headlight, the combination with a reflector, of a lamp holder, a supporting post fixed to said lamp holder, a bearing in which said post is journalled, a nut threaded on said post between said holder and bearing to effect longitudinal adjustment of said post, and means for clamping said post and bearing together to maintain said holder in adjusted position.

7 In a headlight, the combination with a reflector, of a vertically and laterally adjustable lam holder, a lamp carrier movable 1n said hol er along the axis thereof, an adjustingscrew having athreaded connection with one of said members last named and a'swivel connection with the other thereof, and means for clamping said members together in adjusted relation.

In testimony whereof I have hereunto set my name this 18th day OJuly, 1922.

AXEL'H. ENGLUND. 

